xhost +hostname really isn't needed.

People tend to dislike it in the case that the cluster manages the
X servers.

git-svn-id: http://visit.ilight.com/svn/visit/trunk/src@14779 18c085ea-50e0-402c-830e-de6fd14e8384

engine/main/XDisplay.C

@@ -180,6 +180,9 @@ XDisplay::Initialize(std::string display,
 //    Tom Fogal, Thu May  5 11:36:39 MDT 2011
 //    Eventually the spinning should end.
 //
+//    Tom Fogal, Thu May  5 11:43:36 MDT 2011
+//    xhost +hostname really isn't needed.
+//
 // ****************************************************************************
 
 bool
@@ -198,9 +201,6 @@ XDisplay::Connect()
     }
     InitVTKRendering::UnforceMesa();
 
-    std::string xh = std::string("xhost +") + this->hostname;
-    system(xh.c_str());
-
     // Test our connection.
     Display* dpy=NULL;
     size_t spin_count = 0;